imagecolorresolve
Get the index of the specified color or its closest possible alternative
Description
int imagecolorresolve(
GdImage $image,
int $red,
int $green,
int $blue
)
If you created the image from a file, only colors used in the image are resolved. Colors present only in the palette are not resolved.
Parameters
-
image
-
A GdImage object, returned by one of the image creation functions,
such as imagecreatetruecolor.
-
red
-
Value of red component.
-
green
-
Value of green component.
-
blue
-
Value of blue component.
Return Values
Returns a color index.
Examples
Example #1 Using imagecoloresolve to get colors from an image
<?php
// Load an image
$im = imagecreatefromgif('phplogo.gif');
// Get closest colors from the image
$colors = array();
$colors[] = imagecolorresolve($im, 255, 255, 255);
$colors[] = imagecolorresolve($im, 0, 0, 200);
// Output
print_r($colors);
imagedestroy($im);
?>
The above example will output
something similar to:
Array
(
[0] => 89
[1] => 85
)